Wikipedia The stylistic variety and level of experimentation[9] in System of a Down's music has made it difficult to describe. Though they have evolved their sound with each album, System of a Down has, for the most part, maintained a single style throughout their body of work. This style has variously been termed alternative metal,[10] alternative rock,[11] art rock,[12][13] experimental rock,[14][15] hard rock,[16][17] heavy metal,[10] nu metal,[18][19] progressive metal[20][21] and...